---
product_id: 223659543
title: "REL Acoustics Tzero MKIII Powered Subwoofer – 6.5-Inch Down-Firing Driver with Class D Amplifier, RCA Inputs, Compact Design for Home Theater, Stereo Systems, and Surround Sound – High Gloss Black"
brand: "rel acoustics"
price: "₨7339"
currency: SCR
in_stock: false
reviews_count: 8
url: https://www.desertcart.sc/products/223659543-rel-acoustics-tzero-mkiii-powered-subwoofer-6-5-inch-down
store_origin: SC
region: Seychelles
---

# 100W Class D amplifier 6.5-inch down-firing driver Versatile RCA & speaker-level inputs REL Acoustics Tzero MKIII Powered Subwoofer – 6.5-Inch Down-Firing Driver with Class D Amplifier, RCA Inputs, Compact Design for Home Theater, Stereo Systems, and Surround Sound – High Gloss Black

**Brand:** rel acoustics
**Price:** ₨7339
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Small Sub, Big Impact: Feel the bass that transforms your space!

## Quick Answers

- **What is this?** REL Acoustics Tzero MKIII Powered Subwoofer – 6.5-Inch Down-Firing Driver with Class D Amplifier, RCA Inputs, Compact Design for Home Theater, Stereo Systems, and Surround Sound – High Gloss Black by rel acoustics
- **How much does it cost?** ₨7339 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/223659543-rel-acoustics-tzero-mkiii-powered-subwoofer-6-5-inch-down)

## Best For

- rel acoustics enthusiasts

## Why This Product

- Trusted rel acoustics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Sleek 6.5" driver delivers deep bass without dominating your space.
- • **Space-Smart Design:** Perfectly sized for rooms up to 200 sq ft, blending effortlessly behind desks or corners.
- • **Seamless Integration:** Plug & play with any home theater or stereo system via RCA or speaker outputs.
- • **Dual-Mode Connectivity:** Switch between music and movie modes for an immersive, dynamic soundstage.
- • **Precision Bass Control:** 100W Class D amp ensures tight, controlled low frequencies down to 27Hz.

## Overview

The REL Acoustics Tzero MKIII is a compact powered subwoofer featuring a 6.5-inch down-firing dynamic driver powered by a 100-watt Class D amplifier. Designed for small to mid-sized rooms up to 200 sq ft, it offers versatile connectivity with RCA and high-level speaker inputs, delivering deep, precise bass down to 27Hz. Its sleek high gloss black finish and space-saving design make it an ideal upgrade for home theaters and stereo systems seeking enhanced low-end performance without bulk.

## Description

Buy REL Acoustics Tzero MKIII Powered Subwoofer – 6.5-Inch Down-Firing Driver with Class D Amplifier, RCA Inputs, Compact Design for Home Theater, Stereo Systems, and Surround Sound – High Gloss Black: Subwoofers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Might only be a 6.5 inch driver but i can hear bass tones as low as 27hz. - Unboxing I think this should have been double boxed. it was only single boxed and there was a hole in the side large enough i can put my finger in and touch the sub. but after unboxing there was no damage. design this thing is sleek looking, I love the gloss black even though it will be a pia to keep nice. Its so cute and tiny i can fit it in the corner behind my desk. connections I connected the sub to my Vanatoo T0s with a single sub cable to the lfe port on the sub. set the crossover on the Vanatoo to 125hz switched the back mode switch on the back of the T0s to bass. set the sub gain to its highest and then i can use the volume knob on the speaker to adjust the gain instead of having to go down to the back of the sub. it helped me very easily blend the sub in. you dont even hear the sub now. sounds like its all coming from the speakers. performance Its awesome. if i have the bass up to high even the little 6.5 inch driver can shake the walls. i turned it down enough to where the walls, my desk and other stuff stopped vibrating effecting the sound. How deep can this little Sub go??? How about decent output down to 30hz then still very reduced db down to 27hz but still audible . conclusion this sub is perfect for your standard 4 inch mid woofer/1 inch tweeter bookshelf speakers. its the perfect amount of added low end. it just seams like my Vanatoo T0s now have 6.5 inch woofers instead of 4 inch. they just sound 2-3 times there size.
Review: Instant upgrade to my system with a minimum of fuss - I have a good quality two channel hifi setup in my home office (12x12) and had been thinking a subwoofer would be a great way to fill out the bottom end of my bookshelf speakers (Wharfedale Denton 85th). These are nicely resolving and crisp, driven with a Rega Elex-R, but I listen to enough music with low frequencies (ambient, techno, some metal) that I felt I could use a little rumble. No need for bowel busting bass, as we're all adults here, leave that for the home theater goons. The T/Zero was the perfect form factor, so small it practically disappears in the room. Setup was easy, long cable, unfussy placement -- if you're using banana plugs it's even easier to connect to your speaker taps. I had it up and running and configured within 15 minutes. It's placed about six feet behind my speakers near the corner of the room. You could construct a system with terrific dynamic range using this sub. In my case, all the warm midrange and detailed treble is handled by the speakers with all the low-end coming from the sub; I have the crossover set fairly high to plump up the sound. I feel it would take a lot more cost and effort to duplicate these sonics in a single speaker cabinet; my office system now sounds as good or better than my reference. A great investment.

## Features

- VERSATILE CONNECTION METHODS: Easily integrates into any home theater or stereo system with speaker outputs or a subwoofer output for seamless connectivity. Available in timeless black and modern white finish.
- IDEAL FOR SMALL TO MID-SIZED SPEAKERS: Perfectly complements lower-end 3-way speakers or quality bookshelf speakers for an enhanced audio experience.
- RECOMMENDED FOR SPACES UP TO 200 SQ FT: Provides pressurizing bass down to 40Hz at -6dB, with the option of using a stereo pair for a more elevated experience or larger listening spaces.
- ENHANCED SOUNDSTAGE AND DEPTH: Adds textural depth and an expanded soundstage for a dramatically improved experience with both music and movies.
- SEALED SUBWOOFER DESIGN: Features a down-firing 6.5" driver powered by a 100-watt Class D amplifier for tight, controlled bass.
- CONNECTION OPTIONS FOR MUSIC AND MOVIES: Simultaneously connect for Music and Theatre. Use the included high-level speaker wire for music and connect via a single RCA cable (not included) to your subwoofer output for movies.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08GD4MV2G |
| Additional Features | Bass Boost |
| Age Range Description | Adult |
| Antenna Location | For Surround Sound Systems |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 5 Hours |
| Best Sellers Rank | #195,810 in Electronics ( See Top 100 in Electronics ) #303 in Home Audio Subwoofers |
| Brand | REL Acoustics |
| Built-In Media | 10 meter high level cable with Neutrik Speakon Connector, User manual and power cord |
| Color | High Gloss Black |
| Compatible Devices | Desktop, Laptop, Projector, Television |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | RCA |
| Control Method | Remote |
| Controller Type | Corded Electric |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.3 out of 5 stars 68 Reviews |
| Enclosure Material | Steel (steel) |
| Frequency Response | 37 Hz |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 8.5"D x 10.5"W x 9.5"H |
| Item Height | 9.5 inches |
| Item Weight | 15 Pounds |
| MP3 player | No |
| Manufacturer | REL Acoustics |
| Model Name | MKIII |
| Model Number | MKIII |
| Mounting Type | Floor Standing |
| Number Of Circuits | 1 |
| Number of Audio Channels | 5.1 |
| Number of Items | 2 |
| Number of Power Levels | 1 |
| Power Source | Corded Electric |
| Processor Count | 1 |
| Series Number | 3 |
| Speaker Maximum Output Power | 100 Watts |
| Speaker Size | 6.5 Inches |
| Speaker Type | Subwoofer |
| Specific Uses For Product | Home Entertainment Systems |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 6.5 Inches |
| Tweeter Diameter | 1 Inches |
| UPC | 857316005492 |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 6.5 Inches |

## Product Details

- **Brand:** REL Acoustics
- **Speaker Maximum Output Power:** 100 Watts
- **Frequency Response:** 37 Hz
- **Connectivity Technology:** RCA
- **Audio Output Mode:** Stereo

## Images

![REL Acoustics Tzero MKIII Powered Subwoofer – 6.5-Inch Down-Firing Driver with Class D Amplifier, RCA Inputs, Compact Design for Home Theater, Stereo Systems, and Surround Sound – High Gloss Black - Image 1](https://m.media-amazon.com/images/I/318xkTfXpdL.jpg)
![REL Acoustics Tzero MKIII Powered Subwoofer – 6.5-Inch Down-Firing Driver with Class D Amplifier, RCA Inputs, Compact Design for Home Theater, Stereo Systems, and Surround Sound – High Gloss Black - Image 2](https://m.media-amazon.com/images/I/71a7vwQFdVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Might only be a 6.5 inch driver but i can hear bass tones as low as 27hz.
*by A***R on August 2, 2022*

Unboxing I think this should have been double boxed. it was only single boxed and there was a hole in the side large enough i can put my finger in and touch the sub. but after unboxing there was no damage. design this thing is sleek looking, I love the gloss black even though it will be a pia to keep nice. Its so cute and tiny i can fit it in the corner behind my desk. connections I connected the sub to my Vanatoo T0s with a single sub cable to the lfe port on the sub. set the crossover on the Vanatoo to 125hz switched the back mode switch on the back of the T0s to bass. set the sub gain to its highest and then i can use the volume knob on the speaker to adjust the gain instead of having to go down to the back of the sub. it helped me very easily blend the sub in. you dont even hear the sub now. sounds like its all coming from the speakers. performance Its awesome. if i have the bass up to high even the little 6.5 inch driver can shake the walls. i turned it down enough to where the walls, my desk and other stuff stopped vibrating effecting the sound. How deep can this little Sub go??? How about decent output down to 30hz then still very reduced db down to 27hz but still audible . conclusion this sub is perfect for your standard 4 inch mid woofer/1 inch tweeter bookshelf speakers. its the perfect amount of added low end. it just seams like my Vanatoo T0s now have 6.5 inch woofers instead of 4 inch. they just sound 2-3 times there size.

### ⭐⭐⭐⭐⭐ Instant upgrade to my system with a minimum of fuss
*by B***I on December 18, 2023*

I have a good quality two channel hifi setup in my home office (12x12) and had been thinking a subwoofer would be a great way to fill out the bottom end of my bookshelf speakers (Wharfedale Denton 85th). These are nicely resolving and crisp, driven with a Rega Elex-R, but I listen to enough music with low frequencies (ambient, techno, some metal) that I felt I could use a little rumble. No need for bowel busting bass, as we're all adults here, leave that for the home theater goons. The T/Zero was the perfect form factor, so small it practically disappears in the room. Setup was easy, long cable, unfussy placement -- if you're using banana plugs it's even easier to connect to your speaker taps. I had it up and running and configured within 15 minutes. It's placed about six feet behind my speakers near the corner of the room. You could construct a system with terrific dynamic range using this sub. In my case, all the warm midrange and detailed treble is handled by the speakers with all the low-end coming from the sub; I have the crossover set fairly high to plump up the sound. I feel it would take a lot more cost and effort to duplicate these sonics in a single speaker cabinet; my office system now sounds as good or better than my reference. A great investment.

### ⭐⭐⭐⭐⭐ Dedicated pure sound for a turntable setup
*by A***R on August 18, 2025*

Definitely worth it for a small system within a small space. Beautiful depth. Incredible sound. The LFE output connection is so much more superior to simple audio RCA. This is unique and a trademark to KEF. Given I use this as a dedicated sub for a turntable and preamp setup the sound is incredible!

## Frequently Bought Together

- REL Acoustics Tzero MKIII Powered Subwoofer – 6.5-Inch Down-Firing Driver with Class D Amplifier, RCA Inputs, Compact Design for Home Theater, Stereo Systems, and Surround Sound – High Gloss Black
- Micca 14 Gauge Pure Copper Speaker Wire, 12 Feet (4 Meters 13.1ft Actual), 2 Pack Pair, Gold Plated Banana Plugs Connectors, Soldered Construction, Slim Design, 245 Strands, For Stereo or Home Theater
- S.M.S.L SU-1 MQA MQA-CD Audio Decoder AK4493S XU316 768kHz/32Bit DSD512 Hi-Res DAC

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-01-24*